<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>admin</title>
</head>
<body>
<input id="text" type="text" />
<button onclick="closeWebSocket()">Close</button>
<div id="message">
    描述<span id="d"></span><br>
    类型<span id="c"></span><br>
    地点<span id="l"></span><br>
</div>
</body>

<script type="text/javascript">

    var websocket = null;

    //判断当前浏览器是否支持WebSocket
    if('WebSocket' in window){
        websocket = new WebSocket("ws://localhost:8080/repair/websocket/admin/2");
    }
    else{
        alert('Not support websocket')
    }

    //连接发生错误的回调方法
    websocket.onerror = function(){
        setMessageInnerHTML("error");
    };

    //连接成功建立的回调方法
    websocket.onopen = function(event){
        setMessageInnerHTML("open");
    }

    //接收到消息的回调方法
    websocket.onmessage = function(event){
        setMessageInnerHTML(event.data)
        var fault = JSON.parse(event.data)
        var d = document.getElementById('d')
        var c = document.getElementById('c')
        var l = document.getElementById('l')
        d.innerHTML=fault.faultInfo
        c.innerHTML=fault.faultCategory
        l.innerHTML=fault.faultSite

    }

    //连接关闭的回调方法
    websocket.onclose = function(){
        setMessageInnerHTML("close");
    }

    //监听窗口关闭事件，当窗口关闭时，主动去关闭websocket连接，防止连接还没断开就关闭窗口，server端会抛异常。
    window.onbeforeunload = function(){
        websocket.close();
    }

    //将消息显示在网页上
    function setMessageInnerHTML(innerHTML){
        document.getElementById('message').innerHTML += innerHTML + '<br/>';
    }

    //关闭连接
    function closeWebSocket(){
        websocket.close();
    }

</script>
</html>